def test1(obj='aa'):
    print(obj)
    return


def test2(*varargs):
    print('不定长参数')
    for item in varargs:
        print(item)
    return


def test3(v1, v2):
    _v1 = v1 + 1
    _v2 = v2 + 1
    return lambda _v1, _v2: _v1 * _v2


result = test3(1, 2)
print(result)

print(__name__)

# python末尾必须以空行结尾
